Projects Page 2012-2013

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  6. Step 1 Brainstorming a Question
  7. Step 2 Variables and Hypotheses
  8. Step 3 Design Your Experiment
  9. Step 4 Plan your experiment
  10. Step 5 Do your experiment
  11. Step 6 Background
  12. Step 7 Analyze Your Data
  13. Step 8 What does it mean?
  14. Step 9 Prepare for Presentation
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mare-tem4

Edit 0 12 …

Marker Go Bye Bye


Broad Question

How permanent are permanent markers?

Specific Question

What soap best removes black Sharpie from a white t-shirt?

Variables

Independent Variable:

Soap type

Dependent Variable:

Fade of Sharpie

Variables That Need To Be Controlled:

The Sharpie, the shirt, and the stain.

Hypothesis

I think the dish soap will best remove the Sharpie stain from the t-shirt.

Graph of Hypothesis

Marissa_Edgerly_Hypothosis.JPG

Experimental Design

I will investigate which type of soap best removes black sharpie from a white t-shirt. I will conduct my experiment at my house because it is the easiest place to find a time. I am the only person involved in my experiment. I will perform the experiment, take the data, and observe what happens. I will need two trials to have enough information for a reliable conclusion. When I am conducting my experiment I will be entering the data straight into the computer. To document the process I will take pictures of every trial.


Materials List

A white t-shirt
A black fine point Sharpie marker
A bar of soap
A bottle of hand soap
A bottle of dish soap
A bottle of laundry soap
A bowl of water
A sponge

Detailed Procedure

  1. Gather all materials
  2. Draw five lines of equal size and length with the Sharpie on the t-shirt
  3. Apply bar soap on one line on the t-shirt for a total of 10 rubs
  4. Apply one squirt of hand soap on a different line and rub 10 times
  5. Apply one squirt of dish soap on another line and rub 10 times
  6. Apply one cap full of laundry soap on the a line (leaving one as the control) and rub 10 times
  7. Take a sponge full of water from the bowl and rinse out all the soap on the t-shirt
  8. Put the t-shirt in the dryer and take out when dry
  9. Compare the fade of the Sharpie lines
  10. Record data
  11. Repeat steps one through ten for one more trial

Background Research

Reference

Results

Data Table

roar.JPG

Graphs


Photos


Data Analysis


Conclusion

Discussion